Plant Structure
"The universe tends towards maximum disorder" is stated by

first law of thermodynamics
second law of thermodynamics
None of these
third law of thermodynamics

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Plant Structure
Which is not true about a photon?

It is a packet of light energy
It is trapped by photosynthetic unit
It donates electron to reduce carbon dioxide to glucose
The shorter the wavelength, the greater the energy of the photons

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Plant Structure
Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?

Electrons always go from reductants with high redox potentials to oxidants with low redox potentials
None of these
Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions
The rules governing oxidation and reduction apply only in vitro, and not in vivo

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